Machine for drilling buttons.



"No. 790.554 PATENTED MAY'ZB, 1905.

s. A. BRANDON. MACHINE FOR DRILLING BUTTONS.

APPLIOATION FILED 'JUNE 24, 1908.

and 2.

UNITED STATES Patented May 23, 1905.

PATENT OFFICE.

STEPHEN ANDRE BRANDON, LEIPSIC, GERMANY, ASSIGNOR TO AARON VAIL ROWLEY, OF FRANKFORT-ON-THE-MAIN, GERMANY.

MACHINE FOR DRILLING BUTTONS.

SPECIFICATION forming part of Letters Patent No. 790,554, dated May 23, 1905.

Application filed June 24, 1903. Serial No. 162,879.

To all whom it may concern:

Be it known that I, STEPHEN ANDRE BRAN- DON, a subject of the King of Great Britain, and a resident of Leipsic, in the Kingdom of Saxony and Empire of Germany, have invented certain new and useful Improvements in Machines for Drilling Buttons, of which the following is a specification.

My invention relates tobutton-drilling machines,'and has for its object to provide an improved button-holding chuck for such machines, such chuck being so constructed as to afford an efficient support for the central portion of the button through which the perforations are made. Y

The invention will be fully described hereinafter and the features of novelty pointed out in the appended claims.

Reference is to be had to the accompanying drawings, in which Figure 1 is an elevation, partly in section, of a portion of a chuck embodying my invention. Fig. 2 is an end view thereof. Fig. 3 is a perspective view and a cross-section of the button-supporting plate shown in Figs. 1 Fig. 4: is a longitudinal section of another form of my invention. Fig. 5 is a corresponding end view. Fig. 6 shows a third form of my invention partly in section, and Fig. 7 is a face view of the structure shown in Fig. 6.

According to the structure shown in Figs. 1, 2, and 3, the chuck comprises a seriesof elastic arms a, which are adapted to bepressed together in any suitable manner, as by means of the usual casing engaging the beveled surfaces b. To one of these arms a is. attached by a screw 03 or otherwise a button-holding plate 0, extending transversely across, so as to be in position to form a backing for the button. This plate has the required number of perforations and may be dished to suit the form of the button, as shown in Fig. 3. The outer portion of the plate is adapted to rest against a support formed by shoulders on the arms a, as shown best in Fig. 1. Thus the button-holding plate is firmly held in position without, however, interfering with the contracting or expanding movement of the chuck As illustrated by Figs. 4 and 5, the supporting-plate 0, instead of being attached to one of the arms a, is carried by an axiallyarranged stem 0, therear end of which is secured to the body or shank of the chuck. In this construction also the edge of the plate 0 rests against shoulders provided on the arms a.

In Figs. 6 and 7 the plate 0 is provided with arms f, which extend between the jaws of the chuck-arms a and are at their outer ends secured to a stationary support-such as the work plate h, for instance by means of screws g. It will be understood that in thisconstruction the spaces between the arms a, or at least their jaw ends, will be wider than inthe structures illustrated by Figs. 1 to 5. The work-plate h, in conjunction with the arms f, forms a supportfor the edge portion of the plate c, so that in each of the three constructions shown the button-holding plate has its edge portion firmly supported.

What I claim as new, and desire to secure by Letters Patent, is

1. In a machine for drilling buttons and the like, a chuck provided with arms extending alongside each other and secured at one end while the other ends of said arms are free, and a button-supporting platesupported at its edge portionand located within said chuck at the free ends of said arms.

2. In a machine for drilling buttons and the like, a chuck provided with arms extending alongside each other and secured at one end, the other ends of the arms being free, and a button-supporting plate located within the chuck and having its edge portion in engagement with the free ends of said arms.

3. In a machine for drilling buttons and the I like, a chuck provided with arms extending alongside each other and secured at one end, while the other ends are free, said arms having internal shoulders at their free ends, and a button-supporting plate located within the chuck and engaging said shoulders with its edge portion.

4. .In a machine for drilling buttons and the to this specification in the presence of two sublike, a chuck provided with movable arms, scribing Witnesses. and a continuous button-supporting plate 10- v1 1 T r 4 7 I cated centrally of the chuck and secured cliblEPHhN Ah DRE BRANDON 5 rectly to one of said arms so as to be movable l \Vitnesses:

therewith relatively to the other arms. JEAN GRUND,

In testimony WhereofI have signed my name CARL GRUND. 

